Suppose Amberline Associates enters into Firm Commitment underwriting agreement with Goldman Sachs to issue 4200 of 5 year corporate bonds with $1,000 face value. Goldman agrees to buy the bonds for $620 each and sells 84% of the issue in the market for $831 per bond. Find the proceeds of the issue to Amberline and Goldman Sacks. This is firm commitment underwriting question. Please show all the steps for given problem.